title: Downregulation of SOK1 promotes the migration of MCF-7 cells.
abstract: SOK1 is a member of the germinal center kinase (GCK-III) subfamily but little is known about it, particularly with respect to its role in signal transduction pathways relative to tumor metastasis. By stably transfecting SOK1 siRNA into the MCF-7 breast cancer cell line we found that SOK1 promotes the migration of MCF-7 cells, as determined using wound-healing and Boyden chamber assays. However, cell proliferation assays revealed that silencing SOK1 had no effect on cell growth relative to the normal cells. Silencing SOK1 also had an effect on the expression and phosphorylation status of a number of proteins in MCF-7 cells, including FAK and GM130, whereby a decrease in SOK1 led to an increase in the expression of these proteins.
authors.affiliation: Key Lab of Molecular Medicine, Ministry of Education, Shanghai Medical College, Fudan University, Shanghai, China. xudongchen305@hotmail.com
authors.forename: Xu-Dong
authors.initials: XD
authors.lastname: Chen
authors.forename: Chien-Yu
authors.initials: CY
authors.lastname: Cho
mesh_terms: D001324:Autoantigens / Q000378:metabolism*; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics*; D015536:Down-Regulation; D051417:Focal Adhesion Kinase 1 / Q000378:metabolism*; D055785:Gene Knockdown Techniques; D020868:Gene Silencing; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics / Q000502:physiology*; D008565:Membrane Proteins / Q000378:metabolism*; D010766:Phosphorylation; D017346:Protein Serine-Threonine Kinases / Q000235:genetics / Q000502:physiology*; D034741:RNA, Small Interfering / Q000235:genetics; D014162:Transfection; D000099317:Hippo Kinases
chemical_list: D001324:Autoantigens; D051417:Focal Adhesion Kinase 1; D047908:Intracellular Signaling Peptides and Proteins; D008565:Membrane Proteins; D017346:Protein Serine-Threonine Kinases; D034741:RNA, Small Interfering; C097741:Golgin subfamily A member 2; C496050:PTK2 protein, human; C530660:STK25 protein, human; D000099317:Hippo Kinases